αἰὲν ἀριστεύειν καὶ ὑπείροχον ἔμμεναι ἄλλων → always strive for excellence and prevail over others (Iliad 6.208, 11.784)
P. and V. ἐξέρχεσθαι.
of a river: P. ἐξιέναι (ἐξίημι), ἐκβάλλειν.
